% 文档类
\documentclass{ctexart}
% 导言区

% 正文区
\begin{document}
	
 \begin{itemize}	
	\item An item.	
	\begin{itemize}		
		\item A nested item.		
		\item[+] A `plus' item.		
		\item Another item.		
	\end{itemize}	
	\item Go back to upper level.	
\end{itemize}

\begin{enumerate}	
	\item An item.	
	\begin{enumerate}		
		\item A nested item.\label{itref}		
		\item[*] A starred item.		
	\end{enumerate}	
	\item Reference(\ref{itref}).	
\end{enumerate}

\begin{description}	
	\item[Enumerate] Numbered list.	
	\item[Itemize] Non-numbered list.	
\end{description}
	
\end{document}